锂离子电池充电芯片：
https://www.amazon.de/gp/product/B015IK1YYC/ref=oh\_aui\_detailpage\_o00\_s00?ie=UTF8&psc=1

4x20液晶显示屏：
https://www.amazon.de/gp/product/B00MODAKM4/ref=oh\_aui\_detailpage\_o07\_s00?ie=UTF8&psc=1

DC 升压稳压器 5V：
https://www.amazon.de/gp/product/B015D1A618/ref=oh\_aui\_detailpage\_o04\_s00?ie=UTF8&psc=1

滑动开关：
https://www.amazon.de/gp/product/B00OK9FAUW/ref=oh\_aui\_detailpage\_o03\_s00?ie=UTF8&psc=1

电池：
https://www.amazon.de/gp/product/B013JP6808/ref=oh\_aui\_search\_detailpage?ie=UTF8&psc=1

品鉴者：
https://www.conrad.de/de/drucktaster-24-vdc-005-a-1-x-aus-ein-omron-b3f1055-tastend-1-st-439176.html

滑动开关：
https://www.amazon.de/gp/product/B00OK9FAUW/ref=oh\_aui\_detailpage\_o03\_s00?ie=UTF8&psc=1

主处理器：微芯科技 PIC 18F46K20